package com.zzyl.nursing.service.impl;

import java.time.LocalDateTime;
import java.util.*;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.collection.CollUtil;
import cn.hutool.core.date.DatePattern;
import cn.hutool.core.date.LocalDateTimeUtil;
import cn.hutool.core.util.ObjectUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.json.JSONObject;
import cn.hutool.json.JSONUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.huaweicloud.sdk.iotda.v5.IoTDAClient;
import com.huaweicloud.sdk.iotda.v5.model.*;
import com.zzyl.common.constant.Constants;
import com.zzyl.common.core.domain.AjaxResult;
import com.zzyl.common.exception.base.BaseException;

import com.zzyl.common.utils.DateTimeZoneConverter;
import com.zzyl.common.utils.StringUtils;
import com.zzyl.nursing.dto.DeviceDto;
import com.zzyl.nursing.vo.DeviceDetailVo;
import com.zzyl.nursing.vo.ProductVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;
import com.zzyl.nursing.mapper.DeviceMapper;
import com.zzyl.nursing.domain.Device;
import com.zzyl.nursing.service.IDeviceService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;

/**
 * 设备管理Service业务层处理
 * 
 * @author xyc
 * @date 2025-08-01
 */
@Service
public class DeviceServiceImpl extends ServiceImpl<DeviceMapper, Device> implements IDeviceService
{
    @Autowired
    private DeviceMapper deviceMapper;
    @Autowired
    private RedisTemplate<String, String> redisTemplate;
    @Autowired
    private IoTDAClient client;

    /**
     * 同步产品列表
     */
    @Override
    public void syncProductList() {
        // 请求参数
        ListProductsRequest listProductsRequest = new ListProductsRequest();
        // 设置条数
        listProductsRequest.setLimit(50);
        // 发起请求
        ListProductsResponse response = client.listProducts(listProductsRequest);
        if(response.getHttpStatusCode() != 200) {
            throw new BaseException("同步产品列表失败");
        }
        // 存储到redis
        redisTemplate.opsForValue().set(Constants.IOT_ALL_PRODUCT_LIST, JSONUtil.toJsonStr(response.getProducts()));

    }
    /**
     * 查询设备管理
     * 
     * @param id 设备管理主键
     * @return 设备管理
     */
    @Override
    public Device selectDeviceById(Long id)
    {
        return getById(id);
    }

    /**
     * 查询设备管理列表
     * 
     * @param device 设备管理
     * @return 设备管理
     */
    @Override
    public List<Device> selectDeviceList(Device device)
    {
        return deviceMapper.selectDeviceList(device);
    }

    /**
     * 新增设备管理
     * 
     * @param device 设备管理
     * @return 结果
     */
    @Override
    public int insertDevice(Device device)
    {
        return save(device) ? 1 : 0;
    }

    /**
     * 修改设备管理
     * 
     * @param dto 设备管理
     * @return 结果
     */
    @Override
    public void updateDevice(DeviceDto dto) {
        //修改平台上的设备信息
        UpdateDeviceRequest request = new UpdateDeviceRequest();
        String deviceId = dto.getProductKey() + "_" + dto.getNodeId();
        request.withDeviceId(deviceId);
        UpdateDevice body = new UpdateDevice();
        AuthInfoWithoutSecret authInfobody = new AuthInfoWithoutSecret();
        authInfobody.withSecureAccess(true);
        body.withDeviceName(dto.getDeviceName());
        body.withDescription(dto.getDeviceDescription());
        body.withExtensionInfo(dto.getRemark());
        body.withAuthInfo(authInfobody);
        request.withBody(body);
        UpdateDeviceResponse response;
        try {
             response = client.updateDevice(request);
        }
        catch (Exception e) {
            e.printStackTrace();
            throw new BaseException("修改设备信息失败");
        }
        //如果同一位置绑定了同一个产品，则不能修改
        long count = this.count(Wrappers.<Device>lambdaQuery()
                .eq(Device::getBindingLocation, dto.getBindingLocation())
                .eq(Device::getProductKey, dto.getProductKey())
                .eq(Device::getLocationType, dto.getLocationType())
                .eq(dto.getPhysicalLocationType()!=null, Device::getPhysicalLocationType, dto.getPhysicalLocationType())
        );
        if (count > 0) {
            throw new BaseException("同一位置已绑定相同产品");
        }
        // 本地保存设备
        // 属性拷贝
        Device device = BeanUtil.toBean(dto, Device.class);
        this.updateById(device);
    }

    /**
     * 批量删除设备管理
     * 
     * @param ids 需要删除的设备管理主键
     * @return 结果
     */
    @Override
    public int deleteDeviceByIds(Long[] ids)
    {
        return removeByIds(Arrays.asList(ids)) ? 1 : 0;
    }

    /**
     * 删除设备管理信息
     * 
     * @param iotId 设备管理主键
     * @return 结果
     */
    @Override
    public void deleteByDeviceId(String iotId) {
        DeleteDeviceRequest request = new DeleteDeviceRequest();
        request.withDeviceId(iotId);
        DeleteDeviceResponse response;
        try {
            response = client.deleteDevice(request);
        }catch (Exception e){
            throw new BaseException("删除设备失败");
        }
        Device device = getOne(Wrappers.<Device>lambdaQuery().eq(Device::getIotId, iotId));
        this.removeById(device.getId());
    }

    /**
     * 查询产品列表
     * @return
     */
    @Override
    public List<ProductVo> allProduct() {
        String productVoList = redisTemplate.opsForValue().get(Constants.IOT_ALL_PRODUCT_LIST);
        if (StrUtil.isBlankIfStr(productVoList)) {
            return Collections.emptyList();
        }
        return JSONUtil.toList(productVoList, ProductVo.class);
    }

    /**
     * 注册设备
     * @param deviceDto
     */
    @Override
    public void registerDevice(DeviceDto deviceDto) {
        //判断设备是否已存在
        long count = this.count(Wrappers.<Device>lambdaQuery().eq(Device::getDeviceName, deviceDto.getDeviceName()));
        if (count > 0) {
            throw new BaseException("设备已存在");
        }
        //判断设备标识码是否已存在
        count = this.count(Wrappers.<Device>lambdaQuery().eq(Device::getNodeId, deviceDto.getNodeId()));
        if (count > 0) {
            throw new BaseException("设备标识码已存在");
        }
        //判断同一位置是否绑定了相同设备
        count = this.count(Wrappers.<Device>lambdaQuery()
                .eq(Device::getBindingLocation, deviceDto.getBindingLocation())
                .eq(Device::getProductKey, deviceDto.getProductKey())
                .eq(Device::getLocationType, deviceDto.getLocationType())
                .eq(deviceDto.getPhysicalLocationType()!=null, Device::getPhysicalLocationType, deviceDto.getPhysicalLocationType())
        );
        if (count > 0) {
            throw new BaseException("同一位置已绑定相同设备");
        }
        // 注册设备--->IoT平台
        AddDeviceRequest request = new AddDeviceRequest();
        AddDevice body = new AddDevice();
        body.withProductId(deviceDto.getProductKey());
        body.withDeviceName(deviceDto.getDeviceName());
        body.withNodeId(deviceDto.getNodeId());
        // 秘钥设置,因为数据库表中也需要该字段
        AuthInfo authInfo = new AuthInfo();
        String secret = UUID.randomUUID().toString().replaceAll("-", "");
        authInfo.withSecret(secret);
        body.setAuthInfo(authInfo);
        request.setBody(body);

        AddDeviceResponse response;
        try {
            response = client.addDevice(request);
        } catch (Exception e) {
            e.printStackTrace();
            throw new BaseException("物联网接口 - 注册设备，调用失败");
        }
        // 本地保存设备
        // 属性拷贝
        Device device = BeanUtil.toBean(deviceDto, Device.class);
        // 秘钥
        device.setSecret(secret);
        // 设备id、设备绑定状态
        device.setIotId(response.getDeviceId());
        this.save(device);
    }
    /**
     * 查询设备详情
     * @param iotId
     * @return
     */
    @Override
    public DeviceDetailVo queryDeviceDetail(String iotId) {
        // 查询本地设备数据
        Device device = getOne(Wrappers.<Device>lambdaQuery().eq(Device::getIotId, iotId));
        if(ObjectUtil.isEmpty(device)) {
            return null;
        }
        // 调用华为云接口查询设备详情
        ShowDeviceRequest request = new ShowDeviceRequest();
        request.setDeviceId(iotId);
        ShowDeviceResponse response;
        try {
            response = client.showDevice(request);
        } catch (Exception e) {
            throw new BaseException("物联网接口 - 查询设备详情，调用失败");
        }
        // 属性拷贝
        DeviceDetailVo deviceVo = BeanUtil.toBean(device, DeviceDetailVo.class);
        deviceVo.setDeviceStatus(response.getStatus());
        String activeTimeStr = response.getActiveTime();
        // 日期转换
        if(StringUtils.isNotEmpty(activeTimeStr)) {
            // 日期时区转换
            LocalDateTime activeTime = LocalDateTimeUtil.parse(activeTimeStr, DatePattern.UTC_MS_PATTERN);
            // 日期时区转换
            deviceVo.setActiveTime(DateTimeZoneConverter.utcToShanghai(activeTime));
        }
        return deviceVo;
    }
    /**
     * 查询设备影子
     * @param iotId
     * @return
     */
    @Override
    public AjaxResult queryServiceProperties(String iotId) {
        ShowDeviceShadowRequest request = new ShowDeviceShadowRequest();
        request.setDeviceId(iotId);
        ShowDeviceShadowResponse response = client.showDeviceShadow(request);
        if(response.getHttpStatusCode() != 200) {
            throw new BaseException("物联网接口 - 查询设备影子，调用失败");
        }
        List<DeviceShadowData> shadow = response.getShadow();
        if(CollUtil.isEmpty(shadow)) {
            List<Object> emptyList = Collections.emptyList();
            return AjaxResult.success(emptyList);
        }
        // 获取上报数据的reported （参考返回的json数据）
        DeviceShadowProperties reported = shadow.get(0).getReported();
        // 把数据转换为JSONObject(map)，方便处理
        JSONObject jsonObject = JSONUtil.parseObj(reported.getProperties());
        // 遍历数据，封装到list中
        List<Map<String,Object>>  list = new ArrayList<>();
        // 事件上报时间
        String eventTimeStr = reported.getEventTime();
        // 把字符串转换为LocalDateTime
        LocalDateTime eventTimeLocalDateTime = LocalDateTimeUtil.parse(eventTimeStr, "yyyyMMdd'T'HHmmss'Z'");
        // 时区转换
        LocalDateTime eventTime = DateTimeZoneConverter.utcToShanghai(eventTimeLocalDateTime);


        // k:属性标识，v:属性值
        jsonObject.forEach((k,v) -> {
            Map<String,Object> map = new HashMap<>();
            map.put("functionId", k);
            map.put("value", v);
            map.put("eventTime", eventTime);
            list.add(map);
        });

        // 数据返回
        return AjaxResult.success(list);
    }
    /**
     * 查询产品详情
     * @param productKey
     * @return
     */
    @Override
    public AjaxResult queryProduct(String productKey) {
        // 参数校验(健壮性校验)
        if(StringUtils.isEmpty(productKey)) {
            throw new BaseException("请输入正确的参数");
        }
        // 调用华为云IOT平台接口
        ShowProductRequest showProductRequest = new ShowProductRequest();
        showProductRequest.setProductId(productKey);
        ShowProductResponse response;
        response = client.showProduct(showProductRequest);
        if(response.getHttpStatusCode() != 200){
            return AjaxResult.success(Collections.emptyList());
        }
        // 判断是否存在服务数据
        List<ServiceCapability> serviceCapabilities = response.getServiceCapabilities();
        if(CollUtil.isEmpty(serviceCapabilities)) {
            return AjaxResult.success(Collections.emptyList());
        }
        return AjaxResult.success(serviceCapabilities);
    }
}
